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因 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
因yīncause, reason; by; becauseHSK 6, p, 6 strokes, radical 囗, rank #1036, Hard
因yīnold variant of 因[yīn]HSK 6, p, 6 strokes, radical 囗, rank #1036, Hard
因yīnold variant of 因[yin1]HSK 6, unknown, 6 strokes, radical 囗, rank #1036, Hard
yīn(yin1)yin T1
  1. 1cause, reason; by; because
  2. 2old variant of 因[yīn]
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March 24, 2026

因(囙)yīn(yin1)

The character 因 (yīn) means 'cause' or 'reason' and is often used to indicate a cause-and-effect relationship in sentences. It can also be translated as 'because' when introducing a reason for something. This character is commonly found in formal and written contexts.

Strokes6Radical囗Frequency#1036DifficultyHard
Cultural note

In Chinese culture, understanding the causes behind events is important, often reflected in traditional philosophies like Confucianism that emphasize the significance of context and reasoning in moral decisions.

Memory tip

Imagine a tree (木) growing from a root (因) that represents the cause of its growth. The tree symbolizes the outcome, while the root signifies the reason behind it. Remember, just as a tree's height depends on its roots, the outcome of a situation often depends on its cause.

Meanings of 因

yīn(yin1)
1cause, reason; by; because
Exercise 1 of 2

By ear

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About 因

因Simplified
囙Traditional
6Strokes
囗Radical
连词连词conjunction (conj.)Part of Speech
#1036Frequency Rank
HSK 3.0L6IntermediateHSKKL3CEFRC1

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AI study notes for 因

Usage Notes

因 is often used in more formal contexts, so learners should be cautious when using it in casual conversation. Common collocations include 因为 (yīnwèi, because) and 原因 (yuányīn, reason). Be mindful of tone when pronouncing, as it is pronounced with a flat first tone.

HSK Study Tips

因 is relevant for learners at HSK Level 3 and above, as it connects with other vocabulary related to reasons and causes. Focus on using it in complex sentences to express causal relationships, which is a common task at these levels.

Common Mistakes

Learners often confuse 因 with 因为 (yīnwèi) and use them interchangeably when they are not. For example, saying '因我喜欢' instead of '因为我喜欢' is incorrect; the latter is the proper usage for 'because I like...'.

AI-enhanced 2026-03-24

Pronunciation of 因

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Etymology of 因

Explanation

Pictograph of clothing surrounding (囗) a person (人), now written as 裀. The current meaning is a phonetic loan.

Learn more about character formation (六书)

Decomposition of 因

IDS Structure⿴囗大
因Full character
=
囗wei2
enclosing
大da4
inner
Exercise 1 of 2

Parts

Which of these is part of 因?

How to say cause, reason; by; because in Chinese

“cause, reason; by; because” in Chinese is因yīn

The character 因 (yīn) means 'cause' or 'reason' and is often used to indicate a cause-and-effect relationship in sentences. It can also be translated as 'because' when introducing a reason for something. This character is commonly found in formal and written contexts.

When to use 因

因 is often used in more formal contexts, so learners should be cautious when using it in casual conversation. Common collocations include 因为 (yīnwèi, because) and 原因 (yuányīn, reason). Be mindful of tone when pronouncing, as it is pronounced with a flat first tone.

What learners get wrong

Learners often confuse 因 with 因为 (yīnwèi) and use them interchangeably when they are not. For example, saying '因我喜欢' instead of '因为我喜欢' is incorrect; the latter is the proper usage for 'because I like...'.

Write 因

因

Practice writing 因 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

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Grammar patterns of 因

Exercise 1 of 4

Fill the gap

Type the missing word. Pinyin works; then pick the character.

____为很累,所以我今天不想做饭了。

Because I am very tired, I do not want to cook today.

Example sentences for 因 (14)

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1
我觉得他们嘲笑我是因为我长得丑。

wǒ juéde tāmen cháoxiào wǒ shì yīnwèi wǒ cháng de chǒu。

I thought they were laughing at me because I was ugly.
2
我算是朵墙花,因为我特别害羞。

wǒ suànshì duǒ qiáng huā, yīnwèi wǒ tèbié hàixiū。

I was something of a wallflower; I was terribly shy.
3
因为正在使用很多昂贵的设备,所以我非常紧张。

yīnwèi zhèngzài shǐyòng hěn duō ángguì de shèbèi, suǒyǐ wǒ fēicháng jǐnzhāng。

I get very nervous because I'm using a lot of expensive equipment.
4
惠特比镇因为布拉姆·斯托克著名的吸血鬼故事而名传后世。

huì tè bǐ zhèn yīnwèi bù lā mǔ· Sī tuō kè zhùmíng de xī xuè guǐ gùshi ér míng chuán hòushì。

The town of whitby was immortalised in Bram Stoker's famous Dracula story.
5
我没办法给你提供细节,因为我并不了解任何细节。

wǒ méi bànfǎ gěi nǐ tígōng xìjié, yīnwèi wǒ bìng bù liǎojiě rènhé xìjié。

I can't give you details because I don't actually have any details.
6
如果潮湿发霉的建筑令你生病了,霉菌很可能是病因。

rúguǒ cháoshī fā méi de jiànzhù lìng nǐ shēngbìng le, méi jūn hěn kěnéng shì bìng yīn。

If damp, musty buildings make you ill, mould is probably the cause.
7
现在可以回答你的问题了,你母亲失望的原因就在这里。

xiànzài kěyǐ huídá nǐ de wèntí le, nǐ mǔqīn shīwàng de yuányīn jiù zài zhèlǐ。

And so, to answer your question, that's why your mother is disappointed.
8
你之所以妒忌是因为唱片公司拒绝接受你的想法。

nǐ zhīsuǒyǐ dùjì shì yīnwèi chàngpiàn gōngsī jùjué jiēshòu nǐ de xiǎngfǎ。

You're jealous because the record company rejected your idea.
9
对猫类过敏是哮喘病发作最常见的诱因之一。

duì māo lèi guòmǐn shì xiāo chuǎn bìng fāzuò zuì chángjiàn de yòu yīn zhīyī。

Allergy to cats is one of the commonest causes of asthma.
10
该队还因其良好的体育精神及公平竞争精神而受到了表扬。

gāi duì hái yīn qí liánghǎo de tǐyù jīngshen jí gōngpíng jìngzhēng jīngshen ér shòudào le biǎoyáng。

The team also won praise for sportsmanship and fair play.
11
他之所以成功,是因为他不断努力。

Tā zhī suǒyǐ chénggōng, shì yīn tā bùduàn nǔlì.

The reason he succeeded is because he kept working hard.
12
项目的失败是因为缺乏有效的沟通。

Xiàngmù de shībài shì yīn quēfá yǒuxiào de gōutōng.

The project's failure was due to a lack of effective communication.
13
因为天气原因,航班被取消了。

Yīn wéi tiānqì yuányīn, hángbān bèi qǔxiāo le.

The flight was canceled due to weather reasons.
14
他的成功因他的导师的支持而得以实现。

Tā de chénggōng yīn tā de dǎoshī de zhīchí ér déyǐ shíxiàn.

His success was realized because of his mentor's support.

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Word Family of 因

Compounds20
恩ēnvariant of 恩[ēn]
烟yāncigarette or pipe tobacco
姻yīnmarriage connections
咽yānnarrow pass
茵yīnmattress, cushion; wormwood, Skimmia japon
胭yāncosmetics, rouge
铟yīnindium
氤yīnfog, mist
洇yānto soak; to blot, to splotch
珚yān
筃yīn
絪yīn
裀yīn
鞇yīn
骃yīn
栶yīn
欭yì
秵yīn
銦yīn
駰yīn
Words containing this character20
因为yīnwèibecause因為
原因yuányīncause
因此yīncǐthus
因yīncause
因素yīnsùelement
基因jīyīngene (loanword)
因而yīn’értherefore
因子yīnzǐfactor
死因sǐyīncause of death
可卡因kěkǎyīncocaine (loanword)
海洛因hǎiluòyīnheroin (loanword)
因果yīnguǒkarma
病因bìngyīnpathogen
爱因斯坦àiyīnsītǎnAlbert Einstein (1879-1955), German-born theoretical physicist愛因斯坦
转基因zhuǎnjīyīngenetic modification轉基因
咖啡因kāfēiyīncaffeine (loanword)
因地制宜yīndì-zhìyí(idiom) to use methods in line with local circumstances
起因qǐyīncause
因特网yīntèwǎngInternet因特網
基因组jīyīnzǔgenome基因組
Exercise 1 of 4

Characters with 因

What does 烟 mean?

Frequently asked questions about 因

Common phrases include 因为 (yīnwèi, because) and 原因 (yuányīn, reason). These are frequently used in both spoken and written Chinese.

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